111928556 has 12 divisors (see below), whose sum is σ = 195951840. Its totient is φ = 55942320.

The previous prime is 111928549. The next prime is 111928567. The reversal of 111928556 is 655829111.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12605 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (16329320).

Almost surely, 2^111928556 is an apocalyptic number.

It is an amenable number.

111928556 is a deficient number, since it is larger than the sum of its proper divisors (84023284).

111928556 is a wasteful number, since it uses less digits than its factorization.

111928556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10984 (or 10982 counting only the distinct ones).

The product of its digits is 21600, while the sum is 38.

The square root of 111928556 is about 10579.6292940726. The cubic root of 111928556 is about 481.9259368649.

The spelling of 111928556 in words is "one hundred eleven million, nine hundred twenty-eight thousand, five hundred fifty-six".